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Is the open sentence 3z=2z+5 true or false when z=5?

A. True
B. False

1 Answer

5 votes
Hey there!

If z = 5

we replace "z" with "5"

So, let's test out the problem to see if it is true or false

Problem becomes:
3(5) = 2(5) + 5

Let's work this out


3(5) = 15

Problem becomes:
15 = 2(5) + 5


2(5) = 10

Problem becomes:
15 = 10 + 5


10 + 5 = 15

So, therefore it looks like this statement/ sentence is
True!

~
MeIsKaitlyn:)

User Adnauseam
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